CN112345235A - Positioning method and device for measuring internal teeth of long-shaft parts - Google Patents
Positioning method and device for measuring internal teeth of long-shaft parts Download PDFInfo
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- CN112345235A CN112345235A CN202011244060.XA CN202011244060A CN112345235A CN 112345235 A CN112345235 A CN 112345235A CN 202011244060 A CN202011244060 A CN 202011244060A CN 112345235 A CN112345235 A CN 112345235A
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- clamping sleeve
- measuring
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- fastening device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- General Health & Medical Sciences (AREA)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The application provides a positioning method for measuring internal teeth of long-shaft parts, which comprises the following steps: s10: assembling a fastening device on the mounting seat, and inserting a part into the fastening device to enable the end face of the part to be attached to a first conical table on the mounting seat; s20: and rotating a nut on the fastening device to enable a clamping sleeve on the fastening device to be folded to clamp the surface of the part. The application also discloses an internal tooth measuring device which comprises a base, wherein a measuring assembly is arranged on the base, and a measuring head extends out of the measuring assembly; the base is also provided with a mounting seat, and the mounting seat comprises a first boss, a second boss arranged on the first boss and a first conical table arranged on the second boss; and a fastening device is arranged on the mounting seat. The invention provides a positioning method and a positioning device for measuring internal teeth of long-axis parts, which adopt a method of positioning at one end, clamping the middle part and jointly positioning, are convenient for a detection head to extend into the long-axis parts from the other end of the long-axis parts, are firm in positioning and ensure the detection precision.
Description
Technical Field
The invention belongs to the technical field of measurement of internal teeth of long-shaft parts, and particularly relates to a positioning method for measuring internal teeth of long-shaft parts.
Background
The shaft part is one of typical parts frequently encountered in hardware fittings, is mainly used for supporting transmission parts, transmitting torque, bearing load and the like, and can be generally divided into three types of optical axes, stepped axes and special-shaped axes according to different structural forms of the shaft part; or a solid shaft and a hollow shaft; or a major axis, a minor axis, etc.
The surface or inner hole of the shaft part needs to be detected, such as surface texture detection, jumping detection and the like. For the detection of the outer surface of the shaft part, if the insections on the outer surface are detected, the two ends of the shaft part are generally fixed on a clamping station, after the shaft part is accurately positioned, a detection head is abutted to the surface of the shaft part, and then a clamping workpiece drives the shaft part to rotate, so that the detection of the outer surface of the shaft part is realized. Some hollow shaft parts are provided with internal tooth structures on the inner walls of the hollow structures, the internal tooth structures also need to be detected, during detection, the detection head needs to extend into the hollow shaft parts from one end, so that the traditional two-end clamping and fixing mode cannot be used, at present, the detection work needs to clamp and position only one end, then a special detection tool extends into the hollow shaft parts from one end of the parts for detection, the operation is troublesome, and the detection precision is poor.
In addition, the applicant finds that particularly for hollow parts such as long shafts, the detection operation of the inner teeth is more inconvenient, and the traditional fixing mode is low in coaxiality and poor in stability, so that the detection is inconvenient and the detection precision is poor. Based on the above, the present application further studies on the internal tooth measurement device and method for long-axis parts.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the positioning method for measuring the internal teeth of the long-shaft parts, which adopts a method of positioning at one end, clamping the middle part and jointly positioning, so that the detection head can conveniently extend into the part from the other end of the part, the positioning is firm, and the detection precision is ensured. Simultaneously this application still relates to an internal tooth measuring device for major axis class part, and single-ended positional stability is high, convenient operation, and it is high to detect the precision.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
The application provides a positioning method for measuring internal teeth of long-shaft parts, which comprises the following steps: s10: assembling a fastening device on the mounting seat, and inserting a part into the fastening device to enable the end face of the part to be attached to a first conical table on the mounting seat; s20: and rotating a nut on the fastening device to enable a clamping sleeve on the fastening device to be folded to clamp the surface of the part.
Further, step S10 includes the following steps: s11: the fastening device comprises a hollow cylindrical body, a foldable clamping sleeve is arranged above the hollow cylindrical body, an inner clamping sleeve is arranged in the clamping sleeve, and when a part is inserted into the fastening device, the part penetrates through the clamping sleeve and the inner clamping sleeve and is finally inserted into the hollow cylindrical body.
Further, step S10 includes the following steps: s12: the upper end of the measuring device is provided with a second conical table which moves downwards to abut against the upper end face of the part, so that the position of the part is adjusted.
The positioning method for measuring the internal teeth of the long-axis parts adopts a method of one-end positioning, middle clamping and common positioning, and the detection head and the other end extend into the inner holes of the parts, so that the internal teeth on the inner walls of the parts can be detected. First toper platform and second toper platform in this application are used for the installation location of part, and the toper face of toper platform can match the laminating with the round hole at part both ends, and the packing part is in vertical state after the both ends location, then realizes fixedly through fastener, and fixed back part lower extreme stability is good, can not take place the beat. After the positioning is well carried out, the second conical table is moved away, the detection head extends into the part to be detected, and the part is good in stability after being positioned, so that the detection precision is high.
The internal tooth measuring device for the long-shaft parts comprises a base, wherein a measuring assembly is arranged on the base, and a measuring head extends out of the measuring assembly; the base is also provided with a mounting seat, and the mounting seat comprises a first boss, a second boss arranged on the first boss and a first conical table arranged on the second boss; the mounting base is provided with a fastening device, the fastening device comprises a third boss fixed on the second boss, a hollow cylindrical body is arranged on the third boss, and the first conical table penetrates through the third boss and then extends into the hollow cylindrical body; a clamping sleeve is arranged above the hollow cylindrical body, a nut is arranged on the clamping sleeve, and the nut is in threaded fit with the outer wall of the clamping sleeve; the base is further provided with a support frame, a movable cross beam is arranged above the support frame, a second tapered platform extending downwards is arranged on the cross beam, and the second tapered platform is aligned with the first tapered platform.
In the application, the second conical table and the first conical table which are aligned are used for positioning the part, and then the lower part of the part is clamped by tightening through the fastening device, so that the positioning is stable, deflection is avoided, the device is particularly suitable for positioning and detecting long-axis parts, and the detection precision is high.
Preferably, the clamping sleeve comprises a plurality of arc-shaped plates which are concentrically arranged, one end of each arc-shaped plate is connected to the hollow cylindrical body, and the other end of each arc-shaped plate is opened to form a flaring, so that the insertion of parts is facilitated; the nut is in threaded fit with the outer wall of the arc-shaped plate, so that the clamping sleeve tightens up the stably clamped part in the process that the nut rotates gradually and moves upwards.
Preferably, an inner clamping sleeve is arranged in the clamping sleeve, the lower end of the inner clamping sleeve is narrowed, and the upper end of the inner clamping sleeve is flared; the inner clamping sleeve is provided with a plurality of tightening seams which are staggered up and down. In the structure, the inner clamping sleeve can be a flexible structure, such as a rubber sleeve, a plastic sleeve and the like, so that the surface of a part is protected, and meanwhile, the friction force is increased; and a rigid member, such as a metal sheet, can be used for positioning.
Preferably, a motor is arranged in the base and drives the mounting seat to rotate, so that parts are driven to rotate synchronously, and circumferential detection of the inner teeth is achieved.
Preferably, the measuring head comprises a telescopic rod and a detecting head arranged on the telescopic rod, the telescopic rod can move up and down on the measuring assembly, and internal teeth of shaft parts with different heights can be used for measurement.
Compared with the prior art, the invention has the following beneficial effects: the positioning method for measuring the internal teeth of the long-axis parts is provided, the method of positioning at one end, clamping at the middle part and jointly positioning is adopted, the detection head can conveniently extend into the detection head from the other end of the part, the positioning is firm, and the detection precision is ensured. Simultaneously this application still relates to an internal tooth measuring device for major axis class part, and single-ended positional stability is high, convenient operation, and it is high to detect the precision.
Drawings
Fig. 1 is a front view of a measuring device in the present invention.
Fig. 2 is a perspective view of the measuring device of the present invention.
Fig. 3 is a perspective view of the measuring device of the present invention with the fastening device omitted.
Fig. 4 is a perspective view of the fastening device of the present invention.
Fig. 5 is a front view of the fastening device of the present invention.
Fig. 6 is a top view of the fastening device of the present invention.
FIG. 7 is a top view of the inner clamping sleeve of the present invention.
FIG. 8 is a perspective view of the inner clamping sleeve of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiments described below by referring to the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, are exemplary only for explaining the present invention, and are not construed as limiting the present invention.
In describing the present invention, it is to be understood that the terms: the terms center, longitudinal, lateral, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, and thus, should not be construed as limiting the present invention. Furthermore, the terms: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features shown. In describing the present invention, unless otherwise expressly specified or limited, the terms: mounting, connecting, etc. should be understood broadly, and those skilled in the art will understand the specific meaning of the terms in this application as they pertain to the particular situation.
Referring to fig. 1 to 8, an internal tooth measuring device for long-axis parts in the application includes a base 1, a measuring assembly 2 is arranged on the base 1, and a measuring head extends from the measuring assembly 2; the base 1 is also provided with a mounting seat, and the mounting seat comprises a first boss 11, a second boss 12 arranged on the first boss 11, and a first conical table 13 arranged on the second boss 12; the mounting seat is provided with a fastening device, the fastening device comprises a third boss 4 fixed on a second boss 12, the third boss 4 is provided with a hollow cylindrical body 4, and the first conical table 13 penetrates through the third boss 4 and then extends into the hollow cylindrical body 4; a clamping sleeve 6 is arranged above the hollow cylindrical body 41, a nut 5 is arranged on the clamping sleeve 6, and the nut 5 is in threaded fit with the outer wall of the clamping sleeve 6; the base 1 is further provided with a support frame 3, a movable cross beam 31 is arranged above the support frame 3, a second tapered platform 32 extending downwards is arranged on the cross beam 31, and the second tapered platform 32 is aligned with the first tapered platform 13.
Specifically, in the application, the clamping sleeve 6 comprises a plurality of arc-shaped plates which are concentrically arranged, one end of each arc-shaped plate is connected to the hollow cylindrical body 4, and the other end of each arc-shaped plate is opened to form a flaring, so that parts can be conveniently inserted; the nut 5 is in threaded fit with the outer wall of the arc-shaped plate, so that the clamping sleeve 6 tightens up and stably clamps the part in the process that the nut gradually rotates and moves upwards. In addition, an inner clamping sleeve 7 is arranged in the clamping sleeve 6, the lower end of the inner clamping sleeve 7 is narrowed, and the upper end of the inner clamping sleeve is flared; the inner clamping sleeve 7 is provided with a plurality of vertically staggered tightening seams 71. In the structure, the inner clamping sleeve 7 can be of a flexible structure, such as a rubber sleeve, a plastic sleeve and the like, the surface of a part is protected, and meanwhile, the friction force is increased.
In this application, be equipped with the motor in the base 1, this motor drive the mount pad rotates, and then drives the synchronous rotation of part, realizes internal tooth circumference and detects. The measuring head comprises a telescopic rod 21 and a detecting head 22 arranged on the telescopic rod 21, the telescopic rod 21 can move up and down on the measuring component 2, and internal teeth of shaft parts with different heights can be used for measuring.
In the application, the up-and-down movement of the cross beam 31 and the telescopic rod 21 can be realized through the screw rod and the servo motor transmission device to realize stable up-and-down movement; the detection head 22 in the present application may be an optical detection head, a runout detection head, etc., and the associated measurement assembly 2 is also a prior art measurement device.
In the application, the second conical table 32 and the first conical table 13 which are aligned are used for positioning the part, and then the lower part of the part is clamped by tightening through the fastening device, so that the positioning is stable, the part does not deflect, the device is particularly suitable for positioning and detecting long-axis parts, and the detection precision is high.
The application also relates to a positioning method for measuring the internal teeth of the long shaft part, which comprises the following steps: s10: assembling a fastening device on the mounting seat, and inserting a part into the fastening device to enable the end face of the part to be attached to a first conical table on the mounting seat; s20: and rotating a nut on the fastening device to enable a clamping sleeve on the fastening device to be folded to clamp the surface of the part.
Further, step S10 includes the following steps: s11: the fastening device comprises a hollow cylindrical body, a foldable clamping sleeve is arranged above the hollow cylindrical body, an inner clamping sleeve is arranged in the clamping sleeve, and when a part is inserted into the fastening device, the part penetrates through the clamping sleeve and the inner clamping sleeve and is finally inserted into the hollow cylindrical body. S12: the upper end of the measuring device is provided with a second conical table which moves downwards to abut against the upper end face of the part, so that the position of the part is adjusted.
The detection of transmission shaft class part can adopt two apex location, three-jaw chuck location or one apex location of three-jaw chuck, but the internal gear part of length overlength is measured, can't use conventional clamping mode location measurement, when measuring the internal gear of long shaft class part, the internal tooth of upper end can not use the apex to withstand, if only use three-jaw chuck clamping at the lower extreme, can cause the part clamping unstable, and the measuring result error is too big. The conditions that the part is not stably clamped and the measuring pin is damaged can also occur.
The positioning method for measuring the internal teeth of the long-axis parts adopts the methods of one-end positioning, middle clamping and common positioning, and the detection head extends into the inner holes of the parts from the other end, so that the internal teeth on the inner walls of the parts can be detected. First toper platform and second toper platform in this application are used for the installation location of part, and the toper face of toper platform can match the laminating with the round hole at part both ends, and the packing part is in vertical state after the both ends location, then realizes fixedly through fastener, and fixed back part lower extreme stability is good, can not take place the beat. After the positioning is well carried out, the second conical table is moved away, the detection head extends into the part to be detected, and the part is good in stability after being positioned, so that the detection precision is high.
The invention provides the positioning method for measuring the internal teeth of the long-shaft parts, which adopts a method of positioning at one end, clamping the middle part and jointly positioning, facilitates the extension of the detection head from the other end of the part, ensures firm positioning and ensures the detection precision. Simultaneously this application still relates to an internal tooth measuring device for major axis class part, and single-ended positional stability is high, convenient operation, and it is high to detect the precision.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (8)
1. A positioning method for measuring internal teeth of long-shaft parts is characterized by comprising the following steps:
s10: assembling a fastening device on the mounting seat, and inserting a part into the fastening device to enable the end face of the part to be attached to a first conical table on the mounting seat;
s20: and rotating a nut on the fastening device to enable a clamping sleeve on the fastening device to be folded to clamp the surface of the part.
2. The positioning method for measuring the internal teeth of the long-shaft part as claimed in claim 1, wherein the step S10 further comprises the following steps:
s11: the fastening device comprises a hollow cylindrical body, a foldable clamping sleeve is arranged above the hollow cylindrical body, an inner clamping sleeve is arranged in the clamping sleeve, and when a part is inserted into the fastening device, the part penetrates through the clamping sleeve and the inner clamping sleeve and is finally inserted into the hollow cylindrical body.
3. The positioning method for measuring the internal teeth of the long-shaft part as claimed in claim 1, wherein the step S10 further comprises the following steps:
s12: the upper end of the measuring device is provided with a second conical table which moves downwards to abut against the upper end face of the part, so that the position of the part is adjusted.
4. The internal tooth measuring device for the long-shaft parts is characterized by comprising a base (1), wherein a measuring component (2) is arranged on the base (1), and a measuring head extends out of the measuring component (2);
the base (1) is also provided with a mounting seat, and the mounting seat comprises a first boss (11), a second boss (12) arranged on the first boss (11), and a first conical table (13) arranged on the second boss (12);
a fastening device is arranged on the mounting seat, the fastening device comprises a third boss (4) fixed on the second boss (12), a hollow cylindrical body (4) is arranged on the third boss (4), and the first conical table (13) penetrates through the third boss (4) and then extends into the hollow cylindrical body (4); a clamping sleeve (6) is arranged above the hollow cylindrical body (41), a nut (5) is arranged on the clamping sleeve (6), and the nut (5) is in threaded fit with the outer wall of the clamping sleeve (6);
the base (1) is further provided with a support frame (3), a movable cross beam (31) is arranged above the support frame (3), a second tapered platform (32) extending downwards is arranged on the cross beam (31), and the second tapered platform (32) is aligned with the first tapered platform (13).
5. The internal tooth measuring device for long-shaft parts according to claim 4 is characterized in that the clamping sleeve (6) comprises a plurality of arc plates which are concentrically arranged, one end of each arc plate is connected to the hollow cylindrical body (4), the other end of each arc plate is opened to form a flaring, and the nut (5) is in threaded fit with the outer wall of each arc plate.
6. The internal tooth measuring device for long-shaft parts is characterized in that an inner clamping sleeve (7) is arranged in the clamping sleeve (6), the lower end of the inner clamping sleeve (7) is narrowed, and the upper end of the inner clamping sleeve is flared; the inner clamping sleeve (7) is provided with a plurality of tightening seams (71) which are staggered up and down.
7. An internal tooth measuring device for long-shaft parts according to claim 4, characterized in that a motor is arranged in the base (1), and the motor drives the mounting seat to rotate.
8. An internal tooth measuring device for long-shaft parts according to claim 4, characterized in that the measuring head comprises a telescopic rod (21) and a detecting head (22) arranged on the telescopic rod (21), and the telescopic rod (21) can move up and down on the measuring assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244060.XA CN112345235A (en) | 2020-11-10 | 2020-11-10 | Positioning method and device for measuring internal teeth of long-shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244060.XA CN112345235A (en) | 2020-11-10 | 2020-11-10 | Positioning method and device for measuring internal teeth of long-shaft parts |
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| Publication Number | Publication Date |
|---|---|
| CN112345235A true CN112345235A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011244060.XA Pending CN112345235A (en) | 2020-11-10 | 2020-11-10 | Positioning method and device for measuring internal teeth of long-shaft parts |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504215A (en) * | 1999-07-09 | 2003-02-04 | ハインブーフ ゲゼルシャフト ミット ベシュレンクテル ハフツング シュパネンデ テヒニク | Tightening devices, especially for hollow thin-walled workpieces |
| US20140165752A1 (en) * | 2012-12-17 | 2014-06-19 | Sungwoo Hitech Co., Ltd. | Rotation jig device of processing machine |
| CN205057207U (en) * | 2015-10-27 | 2016-03-02 | 河北宣化工程机械股份有限公司 | Location frock of jackshaft gear class work piece |
| CN109798860A (en) * | 2019-03-29 | 2019-05-24 | 力邦测控设备（洛阳）有限公司 | A kind of brake rim inner hole detector |
| CN111664771A (en) * | 2019-03-07 | 2020-09-15 | 中核新科（天津）精密机械制造有限公司 | Device for detecting inner hole of pipe part and detection method thereof |
| CN211552807U (en) * | 2020-04-26 | 2020-09-22 | 河南中原吉凯恩气缸套有限公司 | Detection tool for high-frequency induction quenching local deformation cylinder sleeve |
-
2020
- 2020-11-10 CN CN202011244060.XA patent/CN112345235A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003504215A (en) * | 1999-07-09 | 2003-02-04 | ハインブーフ ゲゼルシャフト ミット ベシュレンクテル ハフツング シュパネンデ テヒニク | Tightening devices, especially for hollow thin-walled workpieces |
| US20140165752A1 (en) * | 2012-12-17 | 2014-06-19 | Sungwoo Hitech Co., Ltd. | Rotation jig device of processing machine |
| CN205057207U (en) * | 2015-10-27 | 2016-03-02 | 河北宣化工程机械股份有限公司 | Location frock of jackshaft gear class work piece |
| CN111664771A (en) * | 2019-03-07 | 2020-09-15 | 中核新科（天津）精密机械制造有限公司 | Device for detecting inner hole of pipe part and detection method thereof |
| CN109798860A (en) * | 2019-03-29 | 2019-05-24 | 力邦测控设备（洛阳）有限公司 | A kind of brake rim inner hole detector |
| CN211552807U (en) * | 2020-04-26 | 2020-09-22 | 河南中原吉凯恩气缸套有限公司 | Detection tool for high-frequency induction quenching local deformation cylinder sleeve |
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Application publication date: 20210209 |
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